– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Mon 27 Jul Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Mon 27 Jul Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Mon 27 Jul Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 20°C on Mon afternoon, min 13°C on Tue night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 4mm), mostly falling on Sat night. Warm (max 25°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light. | |||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | | |  |  | | | | | | | |  | |
some clouds | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | rain shwrs | some clouds | clear | clear | some clouds | clear | clear | clear | clear | clear | some clouds | light rain | |
Cloud base (m) | 1700 | 1850 | 2250 | 1750 | 1700 | 1900 | 750 | 9400 | 5800 | 8850 | 2200 | 800 | ||||||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | 0.7 | 0.1 | 0.5 | 0.8 | 1 | 0.1 | — | — | — | — | — | — | — | — | — | — | 4 |
max °C | 17 | 20 | 19 | 17 | 18 | 16 | 18 | 20 | 17 | 19 | 21 | 18 | 21 | 25 | 21 | 20 | 21 | 13 |
min °C | 15 | 19 | 15 | 15 | 18 | 13 | 14 | 20 | 13 | 16 | 21 | 15 | 18 | 25 | 15 | 17 | 19 | 10 |
chill °C | 15 | 19 | 15 | 14 | 18 | 13 | 14 | 20 | 13 | 16 | 21 | 15 | 18 | 25 | 15 | 17 | 19 | 10 |
Freezing level m | 3050 | 3300 | 3350 | 3000 | 3150 | 3450 | 3750 | 3800 | 4000 | 3950 | 3950 | 4050 | 4200 | 4450 | 4450 | 3750 | 3150 | 2200 |
 | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — |
 | — | — | 8:52 | — | — | 8:51 | — | — | 8:50 | — | — | 8:49 | — | — | 8:46 | — | — | 8:45 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 3mm), mostly falling on Mon afternoon. Warm (max 20°C on Mon afternoon, min 13°C on Tue night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 4mm), mostly falling on Sat night. Warm (max 25°C on Fri afternoon, min 10°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
SHIP9425 | |||||
 | |||||
Bellingham Airport |  | ||||
SHIP9171 | |||||
SHIP9987 | |||||
SHIP1288 | |||||
SHIP4709 | |||||
SHIP6791 |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.